Washington -LRB- CNN -RRB- -- A super PAC backed by the billionaire brothers Charles and David Koch is dropping $ 6.5 million into six competitive Senate races in a final ad push to send Republican candidates to the upper chamber .

The television ads , which will air in Alaska , Arkansas , North Carolina , Colorado , Iowa and New Hampshire , link Democratic candidates in each race to President Barack Obama , reinforcing Republican messaging throughout the 2014 midterm season that has pushed the Democratic candidates in each of those states to keep their distance from the President .

Local residents are the face of ads in the six states , saying either `` there are lots of reasons '' or `` there are many reasons '' why the Democrat does n't deserve their vote . And the voters go on to say in similar form that , `` A vote for -LSB- insert Democratic candidate here -RSB- is a vote for President Obama . ''

The ads also close by directly endorsing the Republican candidate for Senate in each race , a push not seen from groups in the Koch political network before 2014 .

That 's because Freedom Partners Action Fund is the first super PAC in the Koch 's web of political groups that can do so under campaign laws . And while super PACs , unlike nonprofit issues groups , are required to disclose their donors , super PACs can also directly support individual candidates .

The group was founded in June and the Koch Brothers donated more than $ 4 million to Freedom Partners Action Fund , according to the group 's October quarterly disclosure with the Federal Elections Commission .

The super PAC has also launched ads in several congressional districts in the last week and plans to push additional ads in key states before the election is over .

`` We 'll launch additional ads , it 's just for these states these are kind of our close out messages , '' the group 's spokesman James Davis said .

Dana Bash contributed to this report .

@highlight

The ads will air in Alaska , Arkansas , North Carolina , Colorado , Iowa and New Hampshire

@highlight

The ads follow a similar formula attaching the Democrat to President Barack Obama

@highlight

The group behind the ad is Freedom Partners Action Fund